6 DISCOVERY REPORTS 



des squelettes quartzeux de foraminiferes qu'elle renferme en tres grande quantlte. 

 La structure intime de ces foraminiferes a ete effacee dans I'acte de la fossilisation. 

 Cependant les contours sont assez nettement accuses pour qu'on puisse y reconnaitre 

 des formes anciennes (carboniferes ou permiennes) rappelant celles des Textularia ou 

 des ClimacMnmina. Nous ne pensons pas qu'une determination paleontologique aussi 

 incertaine permette d'arriver a des conclusions nettes relativement a I'age de ces roches ". 

 This record has apparently often been referred to, as Richter notes, but without 

 Hyades's final cautionary sentence. Its value for dating the strata is, however, 

 negligible. 



M. Richter,! records (p. 535) from Staten Island and New Year Island a few Fora- 

 minifera from Inoceranms-htds of somewhat metamorphosed shales and limestones rich 

 in Radiolaria. He figures " Wligosteghia laevigata, Kaufmann" and Globigerina sp. 

 from Cape Conway, Staten Island. From the Argentine-Chile border in the middle of 

 Tierra del Fuego he records (p. 537) a reddish grey dirty limestone rich in Foraminifera, 

 whose chambers are mostly filled with light green glauconite. With them are a few 

 Radiolaria and many macroscopic fossils. " Wligostegina laevigata, Kaufmann" is 

 figured from here. From the same locality he also records (p. 542) Cristellaria rotulata 

 (Lmk.), and notes as seen in section Cristellaria, abundant Globigerina, and also Textu- 

 laria, Nodosaria and " Wligostegina laevigata, Kaufmann". Richter considers the age 

 of these beds to be Albian on the ground of the occurrence in them of Aucellina. 

 Specimens from Mount Tarn on the Brunswick Peninsula, Patagonia, consisted of a 

 finely sandy grey limestone with pyrites, glauconite and mica (p. 537), and with 

 Foraminifera, particularly ''Globigerina cf. cretacea, d'Orb." which is figured. The 

 chambers of the tests are filled, so he says, with amorphous silica. He concludes (p. 564) 

 that in South Patagonia and Tierra del Fuego there have been found fossils possibly of 

 Upper Jurassic age ; certainly of Lower Cretaceous age ; and of the Upper Cretaceous, 

 Albian, and particularly Upper Senonian, the Inocerarmis steinmamii-heds. 



His Globigerina cf. cretacea, appears from the figures to be the true G. cretacea, but 

 his Oligostegina laevigata is, as was Kaufmann's original form, too doubtful to 

 identify. 



R. Holland^ had material from the islands east of Trinity Peninsula, Graham Land. 

 From the Senonian of Seymour Island (or Snow Hill Island, there is doubt as to precise 

 locality but not, apparently, as to age) he had four specimens, which he described and 

 figured as two new species, Ammodiscus grandis (one specimen) and Trochammina 

 cretacea (three specimens). The latter, however, appears to be a Haplophragmoides. 



From the ? Pliocene Pec/ew-conglomerate of Cockburn Island Holland records and 

 figures eleven species. Of the 304 specimens submitted to him five-sixths were Cassi- 

 dulina crassa. The full list he identified as follows : 



1 1925, Beitriige zur Kenntnis der Kreide in Feuerland, Neuesjahrb. Min., hu, Beil-Bd., Abt. B, pp. 524- 

 68, pis. vi-ix. 



2 1910, The Fossil Foraminifera, pp. i-ii, pis. i, ii, Wiss. Ergeb. Schwedisch. Siidpolar-Exped. 1901-3, 

 ni, Lieferung 9, 410. Stockholm. 



